Augmented Renal Clearance in the Hematology and Oncology Populations: A Scoping Review for Pharmacists

Author:

Nelson Nicholas R.1ORCID,Mendoza Chelsea2,Rhoney Denise H.1

Affiliation:

1. Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, Chapel Hill, NC, USA

2. University of North Carolina at Chapel Hill, Chapel Hill, NC, USA

Abstract

Introduction Until recently, interest in renal function has focused on impairment to limit drug toxicity and increase medication safety. Augmented renal clearance (ARC) has been increasingly studied in multiple patient populations, including oncology, and could lead to decreased drug efficacy from faster elimination resulting in subtherapeutic concentrations. This scoping review sought to summarize ARC literature in cancer and identify areas of research to better inform pharmacy practitioners. Data Sources Electronic databases were searched for English articles related to augmented/enhanced renal function/clearance following a framework for scoping reviews. Data Synthesis Fourteen articles were analyzed, divided according to article objective: descriptive studies or ARC’s impact on pharmacokinetics/pharmacodynamics. ARC was most defined as creatinine clearance >130 mL/min/1.73 m2, reported in 10%-100% of patients. Febrile neutropenia in adult and pediatric patients, and age <50-65 years, hematologic malignancy, and lower serum creatinine in adult patients were notable risk factors for ARC. The impact of ARC has only been evaluated with antimicrobial agents consistently resulting in lower than anticipated trough levels. Identified gaps include: elucidation of ARC’s mechanism and associated biomarkers, an inclusive ARC definition for relative renal enhancement, and study of additional drug classes to ascertain the breadth of ARC impact on drug therapy. Conclusions ARC is proving to be a frequent phenomenon in patients with cancer which pharmacists could play a vital role. Further research is needed to better understand the impact of ARC in patient care and a potential need to stage ARC based on degree of renal enhancement to establish specific drug dosing recommendations.

Publisher

SAGE Publications

Subject

Pharmacology (medical)

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